An atom contains a tiny heavy nucleus. 一个原子含有一个微小而重的核。
Every atom consists of a relatively heavy central region or "nucleus". 每一个原子含有一个比较重的中心区域,或者称为核。
The proton, although it was heavy, would be repelled by nucleus, since they both have positive charges. 质子虽然很重,但要受原子核的排斥,因为它们都带正电荷。
Radioactive series: Any of four sets of unstable heavy atomic nuclei that undergo a series of alpha decay and Beta decay until a stable nucleus is achieved. 放射性系:四组不稳定的重原子核,通过一系列α衰变和β衰变直至达到稳定的核为止。
A Possible Island of Beta-Delayed Neutron Precursors in Heavy Nucleus Region 重核区一个可能的β延发中子先驱核素岛
Transport model of heavy nucleus fission 重核裂变的输运模型
The calculated results show that this method is also suitable to heavy, asymmetric nuclei, though obvious differences exist between the proton MOP and the neutron MOP in an asymmetric nucleus. 计算结果表明,这套方法在较重的非对称核中仍然适用,但是非对称核中的质子光学势及中子光学势有明显的差别。
In this paper, the properties of system consisting of various nuclear species and free nucleons are described by a nuclear statistical equilibrium system consisting of a typical heavy nucleus, a particles, free neutrons and protons. 本文采用由自由核子,α粒子及平均重核组成的核统计平衡模型描述由自由核子和许多种类原子核组成的系铣。
The calculation result shows that for the scattering on light nucleus, there is no second diffractive maximum, but on heavy nucleus, there is a second diffractive peak. 计算结果表明,J粒子在轻核上的散射,没有出现第二个衍射峰;而J粒子在重核上的散射出现第二个衍射峰。
Study on Intermediate Energy Heavy Ion Reactions and Characters of Nucleus under Extreme Conditions 中能重离子核反应和极端条件下原子核性质的研究
By careful analysis, the parameters of DOMA ( Disperse Optical Model Analysis) for some medium and heavy nucleus are determined. These parameters are useful for the evaluation of nuclear data. 仔细评价并介绍了几个可在核数据工作中直接应用的中重核色散光学模型参数。
But even the heavy nucleus dominant primary model is used, the multi-μ event rate simulated is still lower than the experimental data and it suggests the existence of other multi-μ sources. 但在重核为主的假设下,产生的事例数仍小于实验值,预示多μ事例还有其他来源。